user
You need to complete the following task:

Categorize the spectrum of the given data set.

[2, 3, 4, 9, 15, 22, 25, 31, 33]

Answer:
assistant
The data set [2, 3, 4, 9, 15, 22, 25, 31, 33] can be categorized into three groups: low (2, 3, 4), medium (9, 15, 22), and high (25, 31, 33).